Another look at the degree‐Kirchhoff index |
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Authors: | José Luis Palacios José Miguel Renom |
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Institution: | Departamento de Cómputo Científico y Estadística, Universidad Simón Bolívar, Apartado 89000, Caracas, Venezuela |
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Abstract: | Let G be an arbitrary graph with vertex set {1,2, …,N} and degrees di ≤ D, for fixed D and all i, then for the index R′(G) = ∑i < jdidjRij we show that We also show that the minimum of R′(G) over all N‐vertex graphs is attained for the star graph and its value is 2N2 ? 5N + 3. © 2010 Wiley Periodicals, Inc. Int J Quantum Chem, 2011 |
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Keywords: | Kirchhoff index star graph |
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